| Autor: |
Bosch, Rik-Wouter, Ritter, Stefan, Herbst, Matthias, Kilian, Renate, Burke, M. Grace, Duff, Jonathan, Scenini, Fabio, Gu, Yuchen, Dinu, Alice, Ehrnstén, Ulla, Toivonen, Aki, Novotny, Radek, Martin, Oliver, Perosanz, Francisco-Javier, Legat, Andraž, Zajec, Bojan |
| Předmět: |
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| Zdroj: |
Corrosion Engineering, Science & Technology; Apr2021, Vol. 56 Issue 2, p103-118, 16p |
| Abstrakt: |
The applicability of an accelerated test technique using tapered tensile specimens for investigating the stress corrosion crack (SCC) initiation behaviour of structural materials in high-temperature water was assessed in the framework of a European collaborative research project (MICRIN – MItigation of CRack INitiation). The main advantage of using a tapered geometry is, that in a single test a stress gradient is obtained through the gauge length, and therefore a stress threshold for SCC initiation can be determined in a reasonable timeframe. This method was used to investigate two different materials that were known to be susceptible to SCC in light water reactor environment: a high-Si stainless steel and a Ni-base weld metal (Alloy 182). The results of the international test programme confirmed that the tapered specimen test methodology could be used to identify a SCC initiation stress threshold, albeit that significant scatter was present in the data. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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